Stamping device



April 10, 1928.

D. B. MILLER STAMPING DEVICE Filed Oct. 26, '1926 3 Sheets-Sheet 1 f 'yz Abril 10, 1923., 1,665,467

D. B MILLER STAMPING DEVICE Filed Oct. 26, 1926 3 Sheets-Sheet. 2

INVENTOR. @axmmi' ATTORNEY.

April 10, 1928, 1,665,467

D. B. MILLER STAMPING DEVICE Filed Oct. 26, 1926 3 Sheets-Sheet 3 1X1 'ENTUR.

A T TORNE Y.

Patented Apr. 10, 1928.

- UNITED STATES DAVID B. MILLER, or GREnnrIELD, MASSACHUSETTS.

STAMPING DEVICE.

Application filed October 26, 1926. Serial No. 144,265. 1

This invention relates to improvements in stamping devices.

An object of the invent-ion is to provide a stamping device for producing an. impression in an article to be stamped, asfor eX- ample one of the closure flaps of a carton for indicating the date on which the carton was filled.

A further object isto provide a stamping device which does not employ ink but directly produces an impression in the material of the carton.

A further object is to effect the stamping operation substantially at the timethat the packages are sealed, this being effected by. the'filled cartons being carried along on a travelling conveyor and the operation ofstamping the flap of the carton immediately before the cartons are sealed.

The stamps are designed to be held in a stationary position and the flap of the carton is momentarily located between the fixed. stamp and a hammer which strikes the flap and forces it against the stamp, whereby the;

desired impression is made in the fiap of the carton and preferably on the upper side only. If desired, the stamps or markings -may be located on the face of the hammerinstead of on the stationary member.

Broadly, the invention comprises one or inoie disks on which are formed figures or other characters which may represent dates or other suitable information. The disk or disks are designed to be adjusted and held a stationaryposition during the stamping; operation. A movable hammer is provided which forces one of the closure flaps of a carton against the stationary disk or disks for impressing the characters on one side only of the flaps. Referring to the drawings:

. Fig. 1 is a side elevational view of the stamping device showing 'a carton in place on a conveyor when the stamping operation takes place, and the mechanisms for operating the movable hammer for forcing a flap of the carton against the stamping device on which the'characters are formed.

' Fig. 2 is a side elevational View ofthe. hammer and its latch operating device.

Fig. 3 is an end elevational view of Fig. 2. Fig. 4 is a front elevational view' of'the stamping device showing a plurality of stamping elements and the means for oscillating the main shaft.

Fig. 5. is an enlarged detaiL-view of the cocentric disk which carries the hammer operating latch. V Flg. 6 is an edge view of the disk.

, [Fig.7 is a de-tail view of the ball and its supporting; arm which ball cooperates to oscillatethe disk.

I Fig. 8 is a detail view showingthe hammer supported in normal position.

' Fig. 9 IS a. view similar to Fig. 8 showing the hammerin the act of being elevated by the oscillating disk and latch thereon.

Fig. 10'isa view illustrating the position of the hammerat the instant of making the impression on a flap of the carton, and

Fig.11 is a view showingthe impressed characters on a flap of the carton.

Referring to the drawings in detail:

1 designates a shaft which is oscillated about its axis by means of the arm 2 that is securedto this shaft. 3 is a link that is attached to the arm 2 by means of the pin 4 and set screw 5. the shaft 6 ofthe carton filling machine (not shown), by disk 7 to which the link3 is pivotaliy attachedjas indicated at 8. The shaft 1 is mounted in bearings 9 andlO. Adjustably secured in the bearing 9 is a latch trip screw 11 for releasing the hammer. 12 is a disk which is rotat-ably mounted on the frame piece 12 as indicated by the pin 13. This disk is formed with several openings 14. Located on a pin 14: in these openingsis the angular shaped latch 15 having the catch portion 16 and the trip arm 17. The latch is normally drawn downward by means of the coiled spring 18. 19 is a hammer that is pivotally mounted on the pin 13 of the frame piece 12' and carries a trip plate 20. 21 indicates the head portion of the hammer. 22

the hammer head are a plurality of marking stamps. 24, 25, and. 26 bearing on their .outer'edges the raised characters27 which maymconsist of numerals, letters or other characters, .as' desired. These disks are separably rotatable on the stud 28' of the main framepieee 12.

7 Each of. the disks are retained in their adjusted positions by means of a pawl 30. The disk 12 is formediwith areoess131 which is formed with The link 3 is actuated from i 32- of the eccentric disk 12'.

the oppositely located curved grooves 32. The curvature of the grooves correspond with the curvature of the spherical ball 33,

which ball is slidably locatedon the reduced portion 34 of the arm 35. This arm is secured to the oscillating shaft 1 by means of set screw 37 whereby an up and down rocking motion is imparted to the arm 35. motion causes the ball to move up and down and slide on the reduced portion 34 of the arm 35. The ba1l33 at the same time moves back and forthin the curved grooves This operation imparts a rocking up and down motion to the disk. As this disk is moved downward thehook portion 16 of thelatch 15 engages the plate 20 on. the hammer 19, and, as the disk is moved upward by the action of the ball 33, the hammer 19 is elevated against the tension ofthespring 22- This movement continues until thefarm 17 of the latch 15 strikes the trip screw 11 and releases the .hammer 1 9 which is drawn forcibly down- "ward by the recoiling oit the spring 22.

Immediately prior to this operation, one of the closure flaps f the carton ll. assumes a position directly in front of the impression characters-27 of the disks E24, 25, and 26.

As the hammer descends, it engages the against the characters '27, thus making an lmpression 1nthe materlal of the flap and on one side only. If desired, the diskv wheels may be formed with a smooth surface and the characters; located on the face of the hammer. Preferably the construction-should be such that the impression appears on the upper surface only of the flap when the carton is closed or sealed.

If desirechthe latch 15 may be pivotally located in one of the other openings 14 rather-thanthat shown in the drawings, with the result that theelevat-ion of the hammer may be changed, thus varying the blow. lflindicates a travelling conveyor on which the cartons are placed, for filling, stamping, and sealing. p

From this description itwill be seen that I have provided a stamping device which produces an impression in the flap of a *arton without the employment of ink or other coloring matter, the impression being ,made directly in the material of the flap and preferably on the upper surface as stated; Fig. 1-1 illustrates how the impression appears on a flap l0 after the stamping operation is completed and before sealing.

453 is a supportingistanda-rd for varying "the height of the stamping device which is connected to the frame 12" at 43". The lower end is connected to the arm 44s-of the mainimachine. i

It is to be. understood that the herein described stamping devicei-s not limited .in: its

This

portion of acarton as the impression may,

if desired, be made upon any convenient part of the. carton.

' hat I claimis: a

y a stamping device, the combination with a stamp member having characters formed thereonya hammer, means for mov-' ing the hammer against the said member comprising a rotatable and an eccentrically mounted disk a latch carried-by the disk for engaging the hammer for elevating the hammer, means for actuating the eccentric -disk,-and means for releasing the hammer supporting latch at a predetermlned point 111 the travel of the disk, a spring for retracting the'hammer when released for moving" it against the member havin char' cters, the

spring operatingto ret'ain't 1e hammer nor mally out of contact with the stamp meniber, whereby the flap of a carton may be inserted between the hammer and the characters on-the stamp member; 1'

2. In adevice for stamping a flapo'f a carton, the combination, a member having' characters formed thereon, a hammer, disk means for moving the hammer against the said member comprising a rotatable mem- :lor engagingthe hammer to elevate the same, means for actuating the disk'means,

ber, a latch carried by the rotatable member 1 flap 40 of the carton and forcibly drives it spaced fromthe stampmember, the rotatable member having grooves tormed therein, a ballrengaging the grooves, and means for actuating the ball for imparting an oscillating movement of the rotatable member, whereby when the article is inserted between thccharacter bearing member alnd the hammer, an impression Will-b6 made in the article whenthe hammer is operated.

3. A device for forming an impression in the flap of a carton comprising a con veyor for supporting the carton, a stamp member, a hammer normally spaced from the stamp member to receive a, flap of the carton in the space, means for operating the hammer to engage the flap and, move it against the stamp member for forming an impression in, the flap, including an ecccntrically mounted and movable disk, means for operating therdisk, a latch on the disk for engaging the hammer to elevate it when the disk is r operated, meansa for releasing the hammer and a spring for returning the hammer for moving it against the flap and the flap produce an imcally, mounted. as rotary movement, a latch on the disk, the disk having a substantially radial grooved recess with curved surfaces, a ball in the groove, an arm arranged at right anglesto the face of the disk, the ball being slidably mounted on the arm, meansfor rocking the arm, whereby as the ball is moved toward and away from the center of the disk it will be oscillated, the hammer being pivotally located adjacent the disk, cooperating means between the latch on the disk and a part of the hammer, and means for disen gaging the latch from the hammer.

5. A stamping device for the purpose described comprising in combination, a shaft member, an arm part attached thereto, means for operating the shaft, a disk member having raised characters formed thereon, a flat faced hammer member cooperating with the characters of the disk member, trip means for actuating the hammer from the arm part on the shaft for engaging and forcing a closure flap of a carton against the said characters of the disk, whereby an impression is made on the closure flap when the flap is lo cated between the hammer and disk.

6. In an impression forming device, a

member having raised characters forn'ied thereon. means for moving a carton which is formed with closure flap members into a position adjacent the raised characters of the stamp member, a hammer device, and means including a shaft, an arm on the shaft, a member carrying the hammer and operated by the arm for actuating the hammer which engages and forcibly drives a flap of the carton against the raised characters of the member for producing an impression in the material of the flap of the carton.

7. A. device for forming an impression in the material of a closure flap of a carton comprising a conveyor for supporting the carton, a memberhaving raised characters, a hammer normally spaced from the char" acter bearing member to receive a flap of the carton in the space, latch means carried by a disk for operating the hammer to engage the flap and move it against the raised characters of the member for forming an impression in the flap.

8. A. device for forming an impression on a closure flap of a carton comprising a member with raised characters, a hammer normally spaced from the said -member to receive an impressionable closure flap of the carton in the space, latch means for elevating the hammer, means engagingthe latch for ally mounted releasingthe hammer, and a spring for returning or moving the hammer for engaging the said-article and'move it against the raised characters of said member.

9. In a machine for forming an impression in the closure flap of the carton, the combination, a conveyor to receive and move the cartons along, a plurality of adjustable character bearing disks, a hammer for engaging the fiap of the carton for driving the flap against said disks, means for normally retaining the hammer spaced from said disks to permit the conveyor to move a flap into said space, means drawing the hammer away from the disk, and a spring actuated latch for permitting the hammer to return to engage the flap of the carton and drive it against said disks for forming an impres sion in the flap.

10. In a machine for forming an impression in the closure flap of the carton, the combination, a conveyor to receive and move the cartonsalong, a plurality of adjustable character bearing disks, a hammer for engaging the flap of the carton for driving the flap against said disks, means for normally retaining the hammer spaced from said disks to permit the conveyor to move a flap into said space, means drawing the hammer away from the disk, and a spring actuated'latch for permitting the hammer to return to engage the flap of the carton and drive it against. said disks for forming an impression in the flap, and means for varying the extent of movement through which the hammer is drawn before being released.

11. In a machine for the purpose described, the combination with a conveyor for moving the cartons to be stamped, a normally retracted hammer for engaging the flap of a carton for moving it against a member having raised characters, a pivotdisk, a latch on the disk, the hammer being pivotally attached to the disk and having a part which cooperates with the latch, means for operating the disk in cluding a radial slot in thedisk, a ball in the slot and a shaft for moving the ball back and forth in the slot, means for actuating thelatch and for tripping the hammer at a predetermined point in the travel of the disk and a spring for forcibly moving the hammer after being tripped.

' DAVID B. MILLER. 

